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A Case of Obstructive Jaundice Caused by Impaction of a Pancreatic Stone in the Papilla for Which a Needle Knife Precut Papillotomy Was Effective

Context Obstructive jaundice in chronic pancreatitis is generally caused by stenosis of the bile duct in the pancreas. Obstructive jaundice caused by the impaction of a pancreatic stone in the papilla is markedly rare, with only seven cases reported to date. Case report We report a case of obstructive jaundice caused by the impaction of a pancreatic stone in the papilla. A 41-year-old male with chronic pancreatitis was admitted because of epigastric pain. Blood analysis revealed increased levels of hepatobiliary system enzymes, mild jaundice and an increase in pancreatic enzymes. Computed tomography revealed a number of pancreatic stones in the main pancreatic duct, and a stone with a diameter of about 1 cm in the pancreatic head. Swelling of the papilla was observed using duodenoscopy while endoscopic ultrasonography revealed a strong echo with acoustic shadows in the papilla. Percutaneous transhepatic biliary drainage was performed for the obstructive jaundice. Contrast medium from the percutaneous transhepatic biliary drainage route regurgitated into the pancreatic duct and revealed the impaction of pancreatic stones in the common channel. The patient was referred to our hospital for treatment of the stone impaction. We performed a needle knife precut papillotomy and extracted a white stone which was diagnosed as a pancreatic stone by composition analysis. Conclusion Impaction of a pancreatic stone in the papilla is a markedly rare cause of obstructive jaundice in chronic pancreatitis. A needle knife precut papillotomy was effective in removing the impacted pancreatic stone in the papilla.


Itaru Naitoh, Takahiro Nakazawa, Hirotaka Ohara, Tomoaki Ando, Kazuki Hayashi, Fumihiro Okumura, Shozo Togawa, Yasuhiro Kitajima, Tessin Ban, atsuyuki Miyabe, Koichiro Ueno, Hiroaki Yamashita, Takashi Joh, Hitoshi Sano

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